package com.dayu.gulimall.product.config;

import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.JdkSerializationRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @author dayu
 * @version 1.0
 * @email dayu007@foxmail.com
 * @date 2020/12/22 21:15
 * @description 重新定义redis配置类，重写org.springframework.boot.autoconfigure.cache.RedisCacheConfiguration类中的createConfiguration方法
 */
//将容器中的CacheProperties加载到配置类
@EnableConfigurationProperties(CacheProperties.class)
@EnableCaching
@Configuration
public class MyCacheConfig {

    /**
     *  配置文件中的东西没有用上;
     * *
     * 1、原来和配置文件绑定的配置类是这样子的
     * ConfigurationProperties(prefix = "spring.cache")public
     *  class CacheProperties
     * 2、要让他生效
     *  @EnabLeConfigurationProperties(CacheProperties.class)
     * @param cacheProperties
     * @return
     */

    @Bean
    public RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties) {
        CacheProperties.Redis redisProperties = cacheProperties.getRedis();
        org.springframework.data.redis.cache.RedisCacheConfiguration config = org.springframework.data.redis.cache.RedisCacheConfiguration.defaultCacheConfig();
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));
        if (redisProperties.getTimeToLive() != null) {
            config = config.entryTtl(redisProperties.getTimeToLive());
        }

        if (redisProperties.getKeyPrefix() != null) {
            config = config.prefixKeysWith(redisProperties.getKeyPrefix());
        }

        if (!redisProperties.isCacheNullValues()) {
            config = config.disableCachingNullValues();
        }

        if (!redisProperties.isUseKeyPrefix()) {
            config = config.disableKeyPrefix();
        }

        return config;

    }
}
